6854421 has 32 divisors (see below), whose sum is σ = 11289600. Its totient is φ = 3611520.

The previous prime is 6854413. The next prime is 6854423. The reversal of 6854421 is 1244586.

It is not a de Polignac number, because 6854421 - 2³ = 6854413 is a prime.

It is a Curzon number.

6854421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16150 + ... + 16568.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^6854421 is an apocalyptic number.

It is an amenable number.

6854421 is a deficient number, since it is larger than the sum of its proper divisors (4435179).

6854421 is a wasteful number, since it uses less digits than its factorization.

6854421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 7680, while the sum is 30.

The square root of 6854421 is about 2618.0949180654. The cubic root of 6854421 is about 189.9577098860.

The spelling of 6854421 in words is "six million, eight hundred fifty-four thousand, four hundred twenty-one".